Fold pack



Feb." 6, 1940.

G. U. LACROIX FOLD PACK Original Filed April 22; 1957 2 Sheets-Sheet 1 all!!! Mm $60 may Feb. 6, 1940. s. u. LACROIX FOLD PACK Original Filed April 22, 193'? 2 Sheets-Sheet 2 few 5 E [4 mp k Qwmi Patented Feb. 6, 1940 UNITED STATES- 2. 1saeos now when GeorgeU. Lacroix, Waltham, Mass.

Original. applicationApril 22, 1937, Serial No. 138,386. Divided and this application October 3, 1938, Serial No. 233,018

3 Claims.

This invention relates to an improved fold pack in which transfer sheets or carbon sheets are arranged in interleaved relation between the folded strips of paper composing the fold pack,

5 and this application is a division of an applica- '.tlon for United States Letters Patent filed by me April 22, 1937, Serial No. 138,386, for Manifold transfer device.

The invention has for its object to provide a fold pack of this character with a view to saving the time of the typist now expended in renewing and interleaving carbon sheets during the progress of the work.

In accordance with this invention, there is provided an improved fold pack comprising a plurality of continuous superposed strips of paper folded zigzag on transverse perforated lines, and one or more manifoldlng devices arranged in said pack, each of said devices comprising a flexible sheet holder and a plurality of transfer sheets interleaved between the strips of said fold pack and fastened at their rear ends to the forward edge of said holder- The manifolding device or devices arranged in the fold pack may be of any suitable construction, and may, for example, be in the form described and claimed in my copending application above referred to.

The accompanying drawings illustrate by way of example one embodiment of the invention, in which:

Figure l is a plan view of a: manifold transfer device constructed in accordance with my said co-pending application and which may be used in the improved fold pack of the present invention. A corner of the assembly-is broken away although the following description is directed, by

way of example, to a fold pack involving the use of a number of flexible sheet holders, a satisfac tory fold pack in accordance with this invention may be made for use with a single manifoldir'; device.

Referring to the drawings, it will be seen that the manifolding device comprises a transfer sheet holder I 5, a pluralitymf transfer sheets It attached at their rear ends to the forward end of the holder, and a stop member II which may be in the form of a combined stop or guide member, detachably mounted on the rear end of the holder.

The holder l5, which is of approximately rec- 5 tangular form, may be made of any suitable thin sheet material, such as treated fabric, paper or composition. Preferably, however, since the holder is discarded after the transfer sheets are used up, it is made of a cheap material, such as 10 thin, tough paper. At the two ends of its forward edge, the holder is provided with a pair of hookreceiving pockets l8 opening inwardly at l9 for receiving hook-shaped members on the transfer sheets for detachably fastening the latter there- 15 to. These pockets may be formed in any suitable manner, and, if desired, the holder may be provided with two forwardly extending marginal strips 20 coated with adhesive, the lower end of the adhesive coating being so shaped that 20 when the strip is folded downwardly upon the front face of the holder and fastened thereto, the uncoated portion of the strip forms the pocket l8. y 1

The forward edge 22 of the holder between 25 the pockets is cut preferably on a curve, but may be cut on two or more oblique lines, in order to present oblique edges to the platen of a typewriter to prevent buckling. The rear edge of the holder is provided with a narrow strip 28 30 of thin cardboard, or other suitable material, adhesively fastened to the rear face thereof; The strip reinforces the rear edge of the holder, and, at the same time, constitutes means whereby the combined guide and stop member ll may be mounted on and locked to that portion of the holder as hereinafter described.

Each of the transfer sheets i6 is in the form of a rectangular carbon sheet fastened along its rear edge to a strip 26 which reinforces said rear edge and, at the same time, serves as means for attaching it to the holder. Preferably, the strip 26 is folded upon itself along a middle longitudinal line to form a double thickness and the rear edge of the transfer or carbon sheet is se- 5 cured between the folds by adhesive or other suitable means. The two ends of each strip 26 project beyond the side edges of the transfer sheet and these projecting ends may be in the form of hooks 28 facing rearwardly. The strips; 26 are made of very thin, tough paper in order that the combined thickness of a plurality of transfer sheets along their rear edges may be held within reasonable limits for travel between the platen and pressure rolls-of a typewriter.

Each of the carbon sheets has, centrally disposed in its forward edge, a cut-out portion 30 for permitting the copy sheets to be gr nned and pulled forward without disturbing the transfer sheets.

The combined guide and stop member may be of any suitable form of construction which will provide guiding means for the copy sheets and stop means adapted to engage the platen of a typewriter and limit any further travel of the holder around said platen, and one form is shown comprising two narrow elongated strips 32 and 34 of metal or other durable material, fastened together adjacent one longitudinal edge. The strip 32 is in flat form and the strip 34 is U-shaped in cross-section, having a lateral longitudinal flange 36, whereby it is fastened to the fiat strip by rivets 38. The U-shaped portion of strip 34 is of such dimensions that when the two strips are fastened together, the free longitudinal edge of the U-shaped portion is in loose engagement with one face of the fiat strip along a longitudinal edge thereof. The distance between the two arms of the U-shaped portion of strip 34 is just sufiicient to receive and accommodate the cardboard strip 24 on the rear edge of the holder l5. The member I! may be mounted on the rear end of the holder by sliding -it laterally onto the holder, in such position that the strip 24 is enclosed within the U-shaped portion of strip 34 and the holder sheet is between the strip 32 and the free edge of the U-shaped portion. To facilitate this operation and the entrance of the holder sheet l between the strip 32 and the free edge of the U-shaped portion, the latter is rounded at 40 at each end.

On its outer face, the flat strip 32 is provided with a pair of edge guides 42 for centering and guiding the copy strips, which may be of any.

suitable form, but, as shown, are thin plates fastened to the member 32 by rivets, each of the plates having a reversely turned free end for enclosing the edges of the copy sheets.

In use, the operation of a device constructed in accordance with my invention is as follows: In Figure 1, the device is shown as mounted in operative position on the forward end of a multiple continuous strip comprising three copy sheets, of which the top sheet 44 is the original, and the underneath sheets 45 and 46 are carbon copies. The multiple strip may comprise from two to eight or ten, or even more, copy sheets, and the holder I5 is designed to carry the requisite number of transfer sheets for the multiple strip. In Figure 1, the multiple strip comprises three copy sheets and the holder l5 carries two transfer sheets l6.

In arranging the device in the forward end of a multiple strip, the holder is laid upon a flat support and the transfer sheets, if mounted on the holder, are disconnected therefrom on one side by removing the hooked tabs 28 from the pockets l8 and turning the transfer sheets over to one side. The forward ends of the three copy sheets are then laid on the holder and their side edges are inserted in the guides' 42. The ends of the two top sheets are then turned back, leaving the bottom sheet on the holder. One of the transfer sheets is then turned over upon the bottom copy sheet and its hooked tab inserted in its respective pocket l8. The second copy sheet is then laid flat over the transfer sheet and the other transfer sheet is fastened to the holder in the same manner as the first sheet, after which the top or original sheet is laid flat upon the underlying sheets, all of the parts then being in the various positions shown in Figure 1, with the forward edges of the transfer sheets in register with the forward edges of the copy sheets.

The assembly is then mounted in the typewriter with the forward ends of the copy and transfer sheets fed around the platen of the typewriter so as to bring the top copy sheet into position for typing, as fully described in my copending application above referred to.

In the use of the manifolding device, as described in my co-pending application, the work of arranging the sheet holder and interleaving the transfer sheets with the copy sheets is performed by the operator of the typewriter. Such work has to be performed a number of times for each fold pack of stationery and it consumes considerable time and reduces the speed of the typewriting operation and the amount of work which can be accomplished by the operator. Furthermore, it is apt to produce some unsatisfactory copies because there is a tendency on the part of the operator, in order to avoid a stoppage of the work to change the transfer sheets, to use them longer than is advisable. By the use of the present invention, however, the fold packs may be prepared by the manufacture each with one or more holders and with a plurality of transfer sheets arranged in the pack, and in the case where a number of holders are employed, they are spaced at such intervals throughout the fold pack as to be available each for use when the carbon sheets on the preceding holder have been used up. This is illustrated in Figure 4 wherein a series of holders ll, transfer sheets l6, and reinforcement strips 24 are illustrated as being arranged at such spaced intervals through the pack as will insure satisfactory copies at all times. The spacing between the holders will depend to some extent upon the number of copy sheets in the multiple strip of the pack. As a rule, the spacing will be closer as the number of copy sheets increases. Since the holders with transfer sheets are not of appreciable thickness, the bulk of the fold pack is not appreciably increased.

In the use of a prepared fold pack, all that the operator has to do is to slide the combined guide and stop member onto the rear edge of the first holder in the pack which she starts to use, and when she comes to the next holder in the pack, she removes the member I! from the first holder and mounts it on the second holder, and proceeds with the work. The operation of .changing the member I! from one holder to another is very simple and may be quickly and easily performed, and does not appreciably delay the progress of the typewriting work. When the transfer sheets on a holder have been used up, these parts are thrown away, and since they are made of inexpensive material, the discarding of the holders Iccloes not materially increase the cost of the wor It will be noted that in the use of my device, the entire area of each set of forms may be written upon, and, furthermore, the operator may make corrections by turning back the sheets down to the bottom of each set of forms. With iiany of the devices now in use, this cannot be one.

.It will be understood that the invention is not limited to the particular embodiment described and shown herein, but that various changes can be made therein without departing from the spirit and scope of the invention.

What I claim is:

1. The combination with a plurality of continuous superposed strips of paper provided with spaced transverse weakened or perforated lines and folded zigzag on said lines to form, a fold pack, a plurality of manifold transfer devices arranged at intervals in said fold pack, each of said devices including a flexible sheet holder in flat engagement with the bottom face of the bottom sheet of said pack, a plurality of transfer carbon sheets interleaved with said strips, and means connected to the rear end of each of the carbon sheets and projecting laterally therefrom for attaching the same to the forward end of said holder, the holders and carbon sheets being spaced at such predetermined intervals throughout the fold pack as to be available for use when the carbon sheets on the preceding holder have been usedup. l

2. The combination with a plurality of continuous superposed strips of paper provided with spaced transverse weakened'or perforated lines and folded zigzag on said lines to form a fold pack,-a plurality of manifold transfer devices arranged at intervals in said fold pack, each of said devices including a flexible sheet holder in flat engagement with the bottom face of the bottom sheet of said pack and having side portions projecting beyond the adjacent sides of the pack, a plurality of transfer carbon sheets interleaved with said strips, and means connected 150113118 rear end of each of the carbon sheets and projecting laterally therefrom for attaching the sheets to the projecting side portions of the holder at the forward end of the latter, the holders and carbon sheets being spaced at suchpredetermined intervals throughout the fold pack as to be movable therewith and available for use when the carbon sheets on the precedingv holder have been used up.

3. The combination with a plurality of continuous superposed strips of paper provided with spaced transverse weakened or perforated, lines and foldedzig-zag on said lines to form a pack,

a plurality of manifold transfer devices arranged at intervals in said fold pack, each of said devices including a flexible sheet holder in flat engagement with one of said plurality of strips, a plurality of transfer carbon sheets interleaved with said strips and attached at their rear ends to the forward end of said holder in such a manner as to permit the strips to be drawn freely past the holder an transfer carbon sheets, said manifold transfer devices being spaced at such predetermined intervals throughout the fold pack as to be available and ready for use before the carbon sheets on the preceding holder have been excessively used.

GEORGE U. LACRDIX. a 

